Energetic Compounds Based on 4‐Amino‐1, 2, 4‐triazole (ATZ) and Picrate (PA): [Zn(H₂O)₆](PA)₂·3H₂O and [Zn(ATZ)₃](PA)₂·2.5H₂O]_n

Abstract

Two energetic compounds, [Zn(H2O)6](PA)2·3H2O (1) and [Zn(ATZ)3](PA)2·2.5H2O]n (2), were synthesized based on 4‐amino‐1,2,4‐triazole (ATZ) and picrate (PA), and characterized by elemental analysis and Fourier transform infrared (FT‐IR) spectroscopy. The crystallographic data showed that the crystals of 1 and 2 belong to the monoclinic space group P21/n and the triclinic space group P$\bar{1}$, respectively. Furthermore, the ZnII cations are six‐coordinated with six oxygen atoms from crystal water molecules for 1 and six nitrogen atoms from ATZ for 2, and exhibit distorted octahedral configurations. Thermal decomposition mechanisms were determined based on differential scanning calorimeter (DSC) curve corresponding to thermogravimetry‐derivative thermogravimetry (TG‐DTG) curves and kinetic parameters of the first exothermic process were studied by using Kissinger's and Ozawa's method. The energies of the impact sensitivities were 27.8 J for 2 and far greater than 29.4 J for 1. In addition, the experiment found the heats of combustion were –6.53 MJ·kg–1 for 1 and –11.33 MJ·kg–1 for 2 by oxygen bomb calorimeter. Therefore, compound 2 can improve the explosion performance and can maybe regarded as the less toxicity energy additive for the explosives and propellant formulations.

Two coordination polymers with 3-hydrazino-4-amino-1,2,4-triazole as ligand: synthesis, crystal structures, and non-isothermal kinetic analysis

“…As polydentate building blocks, 1,2,4-triazole and its derivatives combine the coordination geometries of both pyrazoles and imidazoles, exhibiting a strong ability to bridge metal ions to afford polynuclear structures [10]. More practically, substituted 1,2, 4-triazoles are excellent ligands of energetic complexes, such as 4-amino-1,2,4-triazole [11][12][13], 3,5-diamino-1,2,4-triazole [14], and 3-azido-1,2,4-triazole [15]. Recently, MOFs [16] as a new concept for coordination polymers have attracted interest since the structure and the stability can be improved.…”

Zinc(II) and Cadmium(II) Complexes Based on 4,5‐Di(4′‐carboxylphenyl)phthalic Acid Ligand: Synthesis, Crystal Structure, and Luminescent Properties

“…plexes, [11] owing to their fluorescent characteristics and potential applications. [12] Take the above mentioned into consideration and as a continuation of our previous work, [5] we employed the H 4 ttca ligand as the center ligand and expected to get some fascinating structures.…”

High pressure studies of Ni3[(C2H5N5)6(H2O)6](NO3)6·1.5H2O by Raman scattering, IR absorption, and synchrotron X-ray diffraction

“…The average bond energies of C-N (273 KJ/mol) and N-N (160 KJ/mol) make great contribution to the energetic characteristics of 1. 15 In addition, 1 has intra-and inter-molecular hydrogen bonds between nitrate ion and DATr (the abbreviation of 3, 4-diamino-1, 2, 4-triazole) ligand, which can be considered as a model of hydrogen-bonded system. 16 We investigate 1 by in situ Raman scattering, infrared absorption, and synchrotron angle-dispersive X-ray diffraction (ADXRD) techniques at room temperature up to ~ 22 GPa.…”